Figure 20-2 Cardiac Cycle Use Figure 20-2 to answer the following questions: What occurs at the circled label “7” on the graph?

Chest pain resulting from the loss of oxygen to heart cells is called:

If the force of ventricular contraction increases, what will happen to the end-systolic volume?

In comparison to a vessel with a large diameter, a vessel with a small diameter has

Which of the following conditions is least likely to lead to renin release?

To defend blood volume against dehydration, the body

Blood flow to a tissue will increase if the

The layer of the heart wall synonymous with the visceral layer of the serous pericardium is:

Which of the following conditions is least likely to lead to rennin release?

Stroke volume depends on